EP1422058B1 - Adhesive bandage having an improved backing material - Google Patents

Adhesive bandage having an improved backing material Download PDF

Info

Publication number
EP1422058B1
EP1422058B1 EP03256663A EP03256663A EP1422058B1 EP 1422058 B1 EP1422058 B1 EP 1422058B1 EP 03256663 A EP03256663 A EP 03256663A EP 03256663 A EP03256663 A EP 03256663A EP 1422058 B1 EP1422058 B1 EP 1422058B1
Authority
EP
European Patent Office
Prior art keywords
adhesive
backing material
outer layer
adhesive bandage
wound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP03256663A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1422058A1 (en
Inventor
Fabio Eduardo Franca
Shailesh C. Patel
Maria Aparecida De Carvalho Scamilla Aledo
Carl Douglas Ray
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson Consumer Inc
Original Assignee
Johnson and Johnson Consumer Companies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson and Johnson Consumer Companies LLC filed Critical Johnson and Johnson Consumer Companies LLC
Publication of EP1422058A1 publication Critical patent/EP1422058A1/en
Application granted granted Critical
Publication of EP1422058B1 publication Critical patent/EP1422058B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/58—Adhesives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/02—Adhesive bandages or dressings
    • A61F13/0203—Adhesive bandages or dressings with fluid retention members
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F2013/00089—Wound bandages
    • A61F2013/00119—Wound bandages elastic

Definitions

  • the present invention relates to adhesive bandages for application to skin wounds, irritations, abrasions, bruises and the like. More specifically, this invention relates to adhesive bandages that include an improved backing material.
  • the backing material is a flexible polymeric film made from two non-elastic polymer outer layers and an elastic polymer inner layer.
  • adhesive bandages have been sold for the purpose of assisting in the treatment and/or protection of cuts, bruises, abrasions and similar injuries to the skin. These bandages cover and protect the wound while it heals.
  • Such bandages comprise a backing material, one major surface of which is coated with an adhesive.
  • a wound-contacting pad which in use overlays the wound, is secured to the adhesive coated surface of the backing (usually, but not always, in the generally central region thereof) by a portion of the adhesive composition.
  • the remaining portions of the adhesive composition serve, during use, to adhere the bandage to the skin surrounding the wound site.
  • Backing materials made from polymers such as polyethylene and polyvinylchloride are known in the art. Such backing materials have the desirable property of being liquid water impermeable. On the other hand, these backing materials are also impermeable to gases such as oxygen and water vapor. If water vapor cannot evaporate from the skin under a backing material, the skin tends to macerate and become uncomfortable. Therefore, backing materials which are both liquid water impermeable and water vapor impermeable are typically perforated to allow water vapor to evaporate from the skin, i.e., to allow the skin to "breathe".
  • backing materials For use on areas that bend, such as on fingers, backing materials that have good flexibility are particularly useful.
  • the flexibility of a backing material is typically measured by stretching the material on an instrument such as an Instron. Two measurements of flexibility are important. The first measurement is the amount of force in grams necessary to stretch the backing material beyond its normal length. The test utilized for stretching backing materials is known as the "stress/strain" test.
  • the second measurement of flexibility is the amount of permanent deformity to the backing material after being stretched. This is known as the "permanent set" test.
  • Polyethylene film backings typically pass the stress/strain test, but do not pass the permanent set test and therefore are not ideal for use on areas that bend, as the bandage will not be comfortable.
  • Polyvinyl chloride and polyurethane film backings typically pass both the stress/strain test and the permanent set test, and therefore have been ideal for use on areas that bend.
  • WO 02/20067 discloses a multi-layer wound dressing comprising at least two absorbent layers.
  • the absorbent layers have different absorbencies, with the layer closest to the wound having a lower absorbency than the layer furthest from the wound.
  • the wound dressing typically contains additional non-absorbing layers, such as a backing film and wound-facing film. The dressing provides absorbency of wound exudates while preventing the absorbent material from entering the wound.
  • JP 10234838 discloses a film for affixing base which is excellent in flexibility, elasticity and chemical resistance, which does not generate environmental problems.
  • the film is of a two or three layer structure comprising: a first layer; a second layer, which comprises an ethylene- ⁇ -olefin copolymer; and optionally a third layer, wherein the first and third layers comprise a polyolefin-based polymer.
  • EP 0 713 764 discloses a film having at least three layers, matt on both sides and with a low tendency to rolling up, which is made by coextrusion.
  • the outer layers are formed from a mixture of at least two different polymers and rather than being flexible, the films disclosed in this document are stiff/rigid.
  • United States Patent Number 6,326,081 teaches an improved masking film for use to protect various substrates including acrylics, glass, metals, and ceramics.
  • the masking film is matte finished on one side and does not utilize an adhesive to adhere to the substrate.
  • the film is coextruded and utilizes copolymers, comonomers, and mixtures thereof.
  • an adhesive bandage as defined in claim 1 comprises a backing material; an adhesive applied to said backing material; and a wound-contacting pad applied to said adhesive; wherein said backing material comprises a first outer layer comprising a thermoplastic polymer; an inner layer comprising an elastic polymer; and a second outer layer comprising a thermoplastic polymer.
  • the adhesive preferably a skin-compatible, medically acceptable pressure-sensitive adhesive, is applied to and carried by one major surface of the backing material to adhere the wound contacting pad to the underlying portion of the backing film. As is known, the remaining portions of adhesive serve to affix the bandage to the skin during use.
  • Polymeric films useful as backing materials in the practice of the present invention are taught in United States Patent Number 6,326,081 , the entire disclosure of which is hereby incorporated by reference. Suitable processes for making such polymeric films are also taught in the '081 patent.
  • the backing material includes first and second outer layers, each comprising a thermoplastic polymer.
  • the first and second thermoplastic polymer layers may be made of the same polymers or different polymers.
  • Suitable polymers for the outer layers include, but are not limited to, polyolefins such as low density polyethylene and linear low density polyethylene; polyvinyl alcohol; nylon; polyester; polystyrene; polymethylpentene; polyoxymethylene; copolymers thereof, and mixtures thereof.
  • a mixture of low density polyethylene and linear low density polyethylene is preferred for use as the outer layers of the backing film in the practice of the present invention.
  • the backing material also includes an inner polymeric layer comprising an elastic polymer.
  • Suitable elastic polymers for the inner layer include, but are not limited to, a metallocene catalyzed copolymer of ethylene with a comonomer selected from the group consisting of octene, hexene, and butene; ethylene propylene diene monomer; styrene copolymers, such as styrene-butadiene-styrene and styrene-ethylene-butylene-styrene copolymers and the like; ethylene methyl acrylate copolymer; ethylene vinyl acetate and mixtures thereof.
  • the backing materials of the present invention are typically made by co-extrusion; other methods may be used if desired.
  • the basis weight for the backing materials may range from about 30 g/m 2 to about 120 g/m 2 , preferably from about 50 g/m 2 to about 90 g/m 2 .
  • the thickness of the backing material may range from about 0.03 mm to about 3 mm, preferably from about 0.05 mm to about 0.5 mm.
  • the backing material preferably is embossed so that one side is smooth and the other side has a matte finish.
  • Suitable backing materials for use in the present invention have a permanent set of no more than about 15 percent. It has been found that adhesive bandages made from backing materials whose permanent set exceeds about 15 percent do not continue to conform to the body part to which they have been applied after that body part has been repeatedly flexed during the course of daily activities. Failure of the backing material to recover after it has been elongated tends to lead to "gapping" between the bandage and the body part to which it has been applied.. Suitable backing materials for use in the present invention also have a stress/strain relationship at 50 percent elongation of between about 800 g/25.4 mm sample width and 1500 g / 25.4 mm sample width.
  • the wound-contacting pad of an adhesive bandage protects the wound from contamination by dirt.
  • the absorbent pad may be made from various materials including rayon fibers; natural fibers, such as, but not limited to, cotton and wood pulp fibers, and synthetic fibers, such as, but not limited to, polyester, polyamide, and polyolefin fibers. Synthetic fibers comprising two or more polymers may be used. Blends of fibers may be used.
  • the fibers may be bicomponent fibers.
  • the fibers may have a core of one polymer, and a sheath of a different polymer.
  • the denier of the fibers comprising the wound-contacting pad is not limited, but typically ranges from about 1 to 10 denier.
  • the basis weight of the wound-contacting pad is not limited, but typically ranges from 0.003 g/cm 2 to 0.015 g/cm 2 .
  • the size of the wound-contacting pad may vary depending on the size of the bandage and/or the size of the wound to be protected or treated.
  • an adhesive is used to adhere the wound contacting pad to the backing material and to adhere the adhesive bandage to the skin of the user.
  • the adhesive may be an aqueous or solvent-based adhesive or it may be a hot melt adhesive, as desired.
  • suitable adhesives include, but are not limited to, those based on styrenic block copolymers and tackifying resins such as HL-1491 available from HB-Fuller Co. (St. Paul MN), H-2543 available from ATO-Findley (Wawatausa, WI), and Resyn 34-5534 available from National Starch & Chemical Company (Bridgewater, NJ).
  • Ethylene copolymers, including ethylene vinyl acetate copolymers, are also useful as adhesives.
  • Suitable adhesives also include acrylic based, dextrin based, and urethane based adhesives as well as natural and synthetic elastomers.
  • the adhesives may also include amorphous polyolefins including amorphous polypropylene, such as HL-1308 available from HB Fuller or Rextac RT 2373 available from Huntsman (Odesssa, TX).
  • the adhesive may be based on Kraton® Brand synthetic elastomers, or natural rubber.
  • These adhesives may also include tackifiers, anti-oxidants, processing oils, and the like as is known in the art.
  • the adhesive can be applied in any desired manner, e.g., by spraying, screen printing or slot die coating.
  • the amount of adhesive typically applied is well known in the art.
  • the adhesive coating weight varies from about 20 grams per square meter ("gsm") to about 100 gsm.
  • Bandages in accordance with the invention may be square, rectangular, round, oval, or triangular in shape.
  • the size of the bandage will depend on the shape of the bandage and the size of the wound meant to be covered by the bandage.
  • a square bandage may range in size from 2 cm x 2 cm to 15 cm x 15 cm.
  • the length of a rectangular bandage may range from 5 cm to 15 cm, preferably from 7.5 cm to 12.5 cm.
  • the width of a rectangular bandage may range from 0.5 cm to 5 cm, preferably from 1 cm to 3 cm.
  • the thickness of the bandage of the invention will vary depending on the application, but generally may range from 0.25 mm to 5 mm, preferably I mm to 3 mm, more preferably 1 mm to 2 mm.
  • FIGS. 1-3 illustrate one embodiment of an adhesive bandage in accordance with the present invention.
  • Adhesive bandage 15 comprises a backing material 20, adhesive 30, and a wound-contacting pad 40.
  • a wound release layer e.g., a porous polyethylene netting, may be secured to that surface of wound-contacting pad 40 which will face toward the wound when the bandage is used.
  • This wound release layer prevents undesirable adherence of the wound-contacting pad to the underlying wound site.
  • the wound contacting pad 40 and the exposed portions of adhesive adjacent thereto may be covered with protective release sheets (not shown in the drawings) prior to packaging of the bandage.
  • backing material 20 has a thickness of about 0.0762 mm (3 mils) and has a first major surface 22 and a second major surface 23.
  • Backing material 20 comprises first outer polymeric layer 25 and second outer polymeric layer 27. These outer layers are made from a 50:50 mixture (by weight) of low density polyethylene (CHEVRON PHILLIPS LDPE 1017 coating resin) and linear low density polyethylene (Dowlex 2517 from DOW CHEMICAL).
  • Backing material 20 further comprises an inner elastic polymeric layer 26, coextensive with outer layers 25, 27.
  • Polymeric layer 26 is made of a mixture of 58% by weight metallocene catalyzed ultra low density polyethylene copolymer (AFFINITY® PL 1280 from DOW CHEMICAL) and 42% by weight ethylene methyl acrylate copolymer (TC 120 from EXXON CHEMICAL COMPANY).
  • the thickness of backing 20 may range from 0.03 mm to about 3 mm, preferably 0.05 mm to 0.5 mm, even more preferably 0.07 mm to 0.15 mm.
  • the first major surface 22 of the backing material carries a pressure sensitive adhesive.
  • the adhesive is indicated by the stippling on first major surface 22 of backing material 20 in FIGS. 1 and 2 and by numeral 30 in FIG. 3 .
  • This adhesive is applied by slot die coating to the aforementioned backing material at a level of about 50 grams of adhesive per square meter of backing material 50 gsm.
  • Wound-contacting pad 40 which comprises a blend of 10% by weight rayon fibers and 90% polypropylene fibers, is secured to tri-layer backing film 20 by adhesive 30.
  • the basis weight of this wound-contacting pad 40 is 115 g/m 2 (3.7 ounces/sq. yard).
  • Physical integrity of wound-contacting pad 40 is achieved by the frictional engagement of the fibers or blend of fibers of which it is constituted. Physical integrity of the wound-contacting pad may be enhanced, if necessary or desired, by the application thereto of a binder as is known in the art.
  • wound-contacting pad 40 it is preferable to cover the upper surface of wound-contacting pad 40 with a wound release means.
  • a wound release means As is known in the art, an apertured plastic film or netting, e.g., one made from polyethylene or the like, may serve as such wound release means.
  • Apertured plastic films suitable for covering the wound-contacting pad are commercially available, e.g., from Applied Extrusion Technology, Middletown, Delaware 19709 USA.
  • Bandages according to the present invention can be made as follows: A strip of backing material having the desired dimensions is placed on a work surface and the selected adhesive is applied to one major surface thereof. The wound-contacting pad is then secured to the adhesive. The wound-contacting pad may be centered end-to-end of the backing or it may be offset toward one such end, as may be desired. The wound release layer, if it is to be used, is secured to the upper surface of the wound-contacting pad. Release strips, e.g., siliconized paper, are placed over the exposed portions of adhesive as well as the wound-contacting pad to protect the bandage prior to use. The bandage is then packaged in any convenient manner, for example by enclosing it between two layers of heat sealable paper and heat sealing the periphery of the two layers. The packaged bandage is then sterilized, if desired, by techniques well known in the art. The bandages can be made by hand or on commercially available bandage making equipment.
  • the data above demonstrates that the backings of the present invention have desirable properties for an adhesive bandage.
  • the adhesive bandages of the present invention are comfortable when worn over areas that bend, such as on fingers.

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Materials For Medical Uses (AREA)
  • Medicinal Preparation (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
EP03256663A 2002-10-23 2003-10-22 Adhesive bandage having an improved backing material Expired - Fee Related EP1422058B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/279,044 US20040082897A1 (en) 2002-10-23 2002-10-23 Adhesive bandage having an improved backing material
US279044 2002-10-23

Publications (2)

Publication Number Publication Date
EP1422058A1 EP1422058A1 (en) 2004-05-26
EP1422058B1 true EP1422058B1 (en) 2010-11-24

Family

ID=32106629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03256663A Expired - Fee Related EP1422058B1 (en) 2002-10-23 2003-10-22 Adhesive bandage having an improved backing material

Country Status (7)

Country Link
US (1) US20040082897A1 (pt)
EP (1) EP1422058B1 (pt)
JP (1) JP2004141662A (pt)
AU (1) AU2003257513B2 (pt)
BR (2) BRPI0304641B8 (pt)
CA (1) CA2445905C (pt)
DE (1) DE60335070D1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200816963A (en) * 2003-01-14 2008-04-16 Kazu Invest Co Ltd Stretch tape
US7819849B2 (en) * 2004-06-04 2010-10-26 Hollister Incorporated Laminated material and body wearable pouch formed therefrom
GB2447833A (en) * 2006-01-27 2008-09-24 World Properties Inc Low friction coatings for adhesive dressings and method of manufacture thereof
EP2555726A4 (en) * 2010-04-07 2014-02-12 Milsport Medical Products Llc FLOATING DRESSINGS
US8349358B1 (en) * 2010-04-15 2013-01-08 Mcbride Emily Vann Transdermal anesthetic applicator having thermochromic indication
USD694892S1 (en) 2011-02-28 2013-12-03 Johnson & Johnson Consumer Companies, Inc. Adhesive bandage with decorated pad
USD697216S1 (en) 2011-02-28 2014-01-07 Johnson & Johnson Consumer Companies, Inc. Adhesive bandage with decorated pad
JP5902427B2 (ja) * 2011-09-27 2016-04-13 バンドー化学株式会社 救急絆創膏用基材フィルム、救急絆創膏及び救急絆創膏の製造方法
US10940047B2 (en) 2011-12-16 2021-03-09 Kci Licensing, Inc. Sealing systems and methods employing a hybrid switchable drape
US9192444B2 (en) * 2011-12-16 2015-11-24 Kci Licensing, Inc. Sealing systems and methods employing a switchable drape
BR102013005921A2 (pt) * 2013-03-13 2014-11-11 Idalisa Nogueira Ferrari Curativo anatômico para o corpo humano
US10342708B2 (en) * 2014-03-17 2019-07-09 Medline Industries, Inc. Decorative bandage and corresponding systems and methods
EP3854361B8 (en) 2014-06-05 2024-03-27 Solventum Intellectual Properties Company Dressing with fluid acquisition and distribution characteristics
US10398604B2 (en) 2014-12-17 2019-09-03 Kci Licensing, Inc. Dressing with offloading capability
DE102018128054A1 (de) * 2018-11-09 2020-05-14 Karl Otto Braun Gmbh & Co. Kg. Bandagenaufdruck
USD918398S1 (en) 2018-12-10 2021-05-04 Johnson & Johnson Consumer Inc. Adhesive bandage with decorated pad
USD913507S1 (en) 2018-12-10 2021-03-16 Johnson & Johnson Consumer Inc. Adhesive bandage with decorated pad
CN113195664A (zh) * 2018-12-21 2021-07-30 3M创新有限公司 具有背衬的医疗制品

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094316A (en) * 1976-08-26 1978-06-13 Eric Nathanson Adhesive bandage with reusable applique
JPH07148240A (ja) * 1993-11-29 1995-06-13 Sekisui Chem Co Ltd 救急絆創膏用フィルム
JP3317563B2 (ja) * 1993-11-29 2002-08-26 大倉工業株式会社 救急絆創膏用基材フィルム
DE4441416A1 (de) * 1994-11-22 1996-05-23 Wolff Walsrode Ag Mehrschichtige, rollneigungsarme, mattierte Polyolefinfolie zur Verwendung als Trägerfilm für Wundpflaster
JPH09154933A (ja) * 1995-12-12 1997-06-17 Nitto Denko Corp 医療用粘着テ−プ及び救急絆創膏
JPH10234838A (ja) * 1997-02-27 1998-09-08 Idemitsu Petrochem Co Ltd 貼付基材用フィルム
US6326081B1 (en) * 1997-09-26 2001-12-04 Tredegar Film Products Corporation Masking film and method for producing same
JP2000001430A (ja) * 1998-06-16 2000-01-07 Dainippon Printing Co Ltd 貼付薬用積層材
DE69905059T2 (de) * 1998-10-02 2003-11-20 3M Innovative Properties Co Elastische verbundwerkstoffe
JP2001064162A (ja) * 1999-06-23 2001-03-13 Mitsubishi Chem Mkv Co 貼付材用フィルム
US6903243B1 (en) * 2000-09-08 2005-06-07 3M Innovative Properties Company Multi-layer absorbent wound dressing
JP2002248124A (ja) * 2001-02-23 2002-09-03 Nitto Denko Corp 医療用貼付材及び救急絆創膏

Also Published As

Publication number Publication date
BR0304641A (pt) 2004-08-31
AU2003257513A1 (en) 2004-05-13
BRPI0304641B1 (pt) 2012-10-16
CA2445905A1 (en) 2004-04-23
JP2004141662A (ja) 2004-05-20
BRPI0304641B8 (pt) 2022-08-23
EP1422058A1 (en) 2004-05-26
AU2003257513B2 (en) 2009-11-12
US20040082897A1 (en) 2004-04-29
BRPI0304641A (pt) 2004-08-31
BR0304641B1 (pt) 2012-10-16
CA2445905C (en) 2011-05-24
DE60335070D1 (de) 2011-01-05

Similar Documents

Publication Publication Date Title
EP1422058B1 (en) Adhesive bandage having an improved backing material
CA2433568C (en) Adhesive bandage having a selectively placed layer
EP1421924A2 (en) Textured breathable films and their use as backing material for bandages
EP0051935B1 (en) Medical device for covering a portion of the anatomical surfaces of a living being
CA1216203A (en) Adhesive film dressing
US6495230B1 (en) Film-based bandage material
US7309809B2 (en) Adhesive attachment and removal device
JP2004130079A5 (pt)
JP2023101615A (ja) 伸張可能な手当用品
AU742636B2 (en) Substrate for adhesive dressing, and medical adhesive dressing and adhesive tape using the same
WO2009110836A1 (en) A stiffening layer for facilitating application of a plastic film to skin
US9271873B2 (en) Film dressing comprising an application aid
CN1608604A (zh) 具有改进背衬材料的胶粘绷带
AU2001275223B2 (en) Breathable non-perforated bandage
AU2001275223A1 (en) Breathable non-perforated bandage
JP4492868B2 (ja) 絆創膏又は粘着ドレッシング
AU2003204908A1 (en) Hydrophobic polyurethane foam as backing material for bandages
JPH0268060A (ja) 留めタブ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20041105

AKX Designation fees paid

Designated state(s): DE FR GB IE

17Q First examination report despatched

Effective date: 20050530

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60335070

Country of ref document: DE

Date of ref document: 20110105

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20110825

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 60335070

Country of ref document: DE

Effective date: 20110825

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200914

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20201006

Year of fee payment: 18

Ref country code: GB

Payment date: 20201014

Year of fee payment: 18

Ref country code: IE

Payment date: 20201009

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60335070

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20211022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211022

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211022